| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.dev.js.ast; |
| |
| import com.google.gwt.dev.util.StringInterner; |
| import com.google.gwt.dev.util.collect.Maps; |
| |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| /** |
| * A normal scope that has a parent and children. |
| */ |
| public class JsNormalScope extends JsNestingScope { |
| |
| private Map<String, JsName> names = Collections.emptyMap(); |
| |
| /** |
| * Create a scope with parent. |
| */ |
| public JsNormalScope(JsScope parent, String description) { |
| super(parent, description); |
| } |
| |
| /** |
| * Returns an iterator for all the names defined by this scope. |
| */ |
| @Override |
| public Iterator<JsName> getAllNames() { |
| return names.values().iterator(); |
| } |
| |
| /** |
| * Creates a new name in this scope. |
| */ |
| @Override |
| protected JsName doCreateName(String ident, String shortIdent) { |
| ident = StringInterner.get().intern(ident); |
| shortIdent = StringInterner.get().intern(shortIdent); |
| JsName name = new JsName(this, ident, shortIdent); |
| names = Maps.putOrdered(names, ident, name); |
| return name; |
| } |
| |
| /** |
| * Attempts to find the name object for the specified ident, searching in this |
| * scope only. |
| * |
| * @return <code>null</code> if the identifier has no associated name |
| */ |
| @Override |
| protected JsName findExistingNameNoRecurse(String ident) { |
| return names.get(ident); |
| } |
| } |